### **Environment**:

OpenProject 11.0.1 (PostgeSQL) Enterprise Edition

Ubuntu 18.04.5
Chrome 86.0.4240.111  and Firefox 81.0.2
OpenProject in English

### **Logs**

Some errors show up in console (screenshot attached), nothing in \`openproject logs\`

### **Steps to reproduce:**

1. Begin of the insertion**Have a type configured as a "Task" as well as a "Story" for the Backlogs menu**.
2. End of the insertion Open the relations tab on a work package that has a version set (https://<openproject instance>/projects/<project name>/work\_packages/<wp id>/relations
Begin of the insertion3.End of the insertion Begin of the deletion 2.End of the deletion Under children click "Create new child"
Begin of the insertion4.End of the insertion Begin of the deletion 3.End of the deletion Enter a subject and select the same version as the parent
Begin of the insertion5.End of the insertion Begin of the deletion 4.End of the deletion Press enter on the subject

### **Actual Behavior**

An error shows up "Version must be the same as the parent story's version."

### **Expected Behavior**

1. Not to have to select a 'version' when the parent I am adding the child to already has a version set. No need to have me select something if I have only one valid choice anyway.
2. A new work package to be created with a child/parent relating to the work package I was editing.

A work around is to add a completely separate work package, and then add it as an existing child later. But this defeats the purpose of the inline "create new child" option Begin of the insertion

### **Notes**

The failure IMO is the result of being able to configure a type to be a Story as well as a Task in the context of Backlogs. This should be prevented.End of the insertion